Files with the .RIFF extension contain raster graphics stored in one or more layers. It is an image created in the Corel Painter software, which is used for creating digital images – it is a so-called digital art studio. For example, it allows you to separate the graphics from the canvas, which allows you to change the background later.

RIFF files are more commonly seen with the RIF extension. They can be opened using Corel Painter Essentials, a simplified version of Corel Painter.